Figure A-1: CA-DA fluorescence calibration experiments

Left (a-g): Fluorescence intensity (sens 12) as a function of CA concentration (nM)
Right (h-k): Fluorescence intensity (sens 12) as a function of DA concentration (nM)
(a - c) in real seawater kept six weeks in the dark, (d - k) in artificial seawater (MilliQ+salts)